Coach Cal Dietz makes the case that speed and skill development work needs to take place early in practice/training sessions after the warm-up. Coach Dietz also provides some tips for incorporating speed and skill development work inside of the limited window of opportunity for such work found within a practice/training session.
The negative effects that fatigue has on speed and skill development also illustrates the importance of monitoring your athletes. After all, athletes can come into practices and training sessions with residual fatigue from previous exertions and stresses (e.g., games, travel, etc.). Such residual fatigue can prevent quality speed and skill development work from taking place, even if it is properly scheduled to take place early in the practice/training session. Sometimes the smartest thing a coach or trainer can do is scrap the plan for the day and go with something else.